After hiking 5.6 miles, sharon found that she was 4/5
of the distance along the trail.

use proportions to find the length of the trail in miles.

Simplify.7x + 3y - 2 + 6x + 1 + y squared 2 you! ; )

The average human heart beats 1.15 \cdot 10^51.15⋅10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65⋅10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year.how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.

Evaluate cos2θ for cosθ = square root of 3/2